Telephone instrument



Jim. 6, 1931.

J. H. PENN TELEPHONE INSTRUMENT Filed Nov; 8, 1928 I ,MII mummnnuimmmw INVENTO? J H PNN ATTORNEY 10 object comprise membersof non-slippage ma- Fig. 4 is a fragmentary view'of a-portion -15 members there is a tendency to move across non-slip members as it appears before being 65' A lieved o the weight o 'thev handset,` has a slip member which has-beenmolded onto a 4 an ually rotated. This movement'of the handbossings. so

Aas and causes a wrong number call tobe made. this caseA being a comparatively thinA rubber 35A 40' venting movement of the handset mounting shown in the drawing in which 1 is the ,main

Patentediaii. 6, 1931 i l 1388330 UNITED s1-arrasPA'l'l-:Nl ori-ics Jur-.ius n. PnNN,.or NEW Yong, N. Y., Ass'IGNoB To anni. TELEPHONE monnronms. I Ncoaronazrnn, or NEW Yonx, N. Y., A conioRArIoN or Niiweronx TELEPHONE INSTRUMENT appneaapn mea. Noembers, 192s'. serial No. siam.

This invention relates to telephone subset mounting minus the base and equipped station instruments which are designed to rest with a calling dial. I v' upon a flat surface lsuch as a desk or table Fi 2 is a view in perspective of a base top and morel particularly' to that type mem er for the handset mounting shown. 5 equilpped with an automatic calling dial. in Fig." 1. This base member shown in Fig.- 55 T e object of this invention is to prevent 2 is equipped with the `non-sli vmembers. undue slippage of the tele hone onthe desk Fig.'3 is a plan view of t e under surlvor table top when a call is eing dialed. face of the base member of Fig. 2 and shows The means employed foraccomplishingthis the location of the non-slip members.

terial which are suitably attached to the of the base member taken on the line 4-4 of L under surface of the telephone instrument. Fig. 3 in the direction of the arrows and show In telephone instruments of the above meningTsomeA of the parts in cross-section. tioned type not equipped `with the non-slip ig. 5 is a view in perspective of one of the a iiat surface when a" call is beingdialed. attached to the base ofthe andset mounting.- Thisis particularly true oftelephone instru- Fig. 6 is a fragmentary 1view of a portion ments in which a supporting member is emofthe base member shown in Fig. 2 and is an 4 ployed to hold a transmitter-receiver instruillustration of one of the cnicalembossings ao .ment `commonly known as a handset. In this shown therein witha certain portion broken 10 type ofinstrument-the calling dial is usually away so that the' various parts can be seen. located on the handset supporting member This view isve similar to that shown of the and when the handset is removed'from the samepart in ig. 44 but shows the non-slip `supporting member which is an jinitial opmember inverted as compared with the` Fig. 25 eration in putting through a call, the handset 4 illustration ais-will be later explained. 75 mountin or supportin member, being re- --Fig. 7 isa crosssectional view of a Inontendency to rotate or move across the desk conical Washer'instead of bein made conical :or table top when the calling dial is' man: by being drawn intoone oft e conical emset mounting during the dialing of a call Fig.8isafragment-ary cross-sectional view often results in the dial not being rotated lof aportion of the base member of a handset suiiiciently to put through the required` signal mounting and'illustrates stilianotherl type of to get the desired callconnectionnon-slip member, the non-slip -member in A wrong. number call is an `annoyance tol disc which has been cemented or otherwise at- Vboth the calling and fcalled party and `fre tached to a base-covering. quenc inthe occurrenceof these wrong num- To more fully describe this invention referl ber ca ls can be considerably'reduced by preence will now be made to the various parts'- while the callin dial thereon'is `being manbod portion. ofa handsetniountin'g, .2`is the ually'rotated. reater'accuracy in the `mancra e.:.or .pronged 'supvortinginember for ual rotation of the calling dial is obtain'eclh ol the 3 ist e upper r.

. `by having the handset mountingremainsubg tionpo :ai switch operatm .plunger w ch i 45 stantiall'y stationary during the -call dialing; -whenthe handset is in. the vcradle 2 g5 operation.l v is de ses.. moves the. contacts ofl a 1130;illustrate `this invention it has been swit'c not shown but located-within themain shown in the ap- 1. .;lttalled1to. .th. mlm bqdy plied to a'handset mounting; .pgrtionlfisja calling d1sl'4which,u nbeu'ig' 50 Fig. 1.is a viewin perspectivefof a hand- I sgi'e'axnov` fromme ma cradle 2, will send certain impulses over the telephone line to operate switches at a central station to put through the call connection.

A base member 5 is provided for the handset mounting and in this base member 5 is preferably a plurality of hollow conical embossings 6, 7 and 8, each adapted to receive a non-slip member 9 which is secured therein by a bolt 10. The under surface and outer edge portions of the base member 5 are covered by a piece of felt or textile material 11 which is stretched over and held to the base member 5 by a ring12'which is sprung within the base member 5. The base covering l1 is cut out at the embossings 6, 7 and 8 so that an opening is left in the base covering 11 for the open end of each of the embossings 6, 7 and 8. Each of these openings in the base covering 11 is of a diameter slightly less than the inside diameter of the embossing at its Widest portion and is made smaller than the diameter of the embossing for a purpose as will be later explained. The base member 5 is secured to the mainbody portion 1 of the handset mounting by one of the bolt members 10 which projects through the embossing as l shank portion 16 and under the head 15 is a Aconical washer 17 illustrated in embossing 8 and is screwed into a bracket not shown but located within the main body portion 1 of the handset mountmg.

The non-slip member 9 preferably is a flexible rubber disc centrally perforated as at 13 and ground oft' on the outer edge to form a bevel as at 14 to provide a non-slip surface for engagement with a flat surface, such for instance, as a desk or table top. The non-slip member 9 is drawn into a conical embossing by a bolt 10. The bolt 10 has. a comparatively large flat slotted head 15 and an enlarged shank portion 16. Fitted onto lthe enlarged The diameter of the nonslip member 9 is slightly greater than the diameter of the embossing at its widest point and is also greater than the diameter of the corresponding cut-out portion in the base covering 11. As the bolt 10 is tightened the non-slip member 9 is drawn into the embossing and the conical washer 17 makes the non- `slip member 9 conform to the shape of the conical embossing and lit snugly against the Wall thereof. The outer edge of the non-slip member 9 overlaps the edge of the cut-out portion of the base covering 11 Vand draws the edge of the cut-out portionslightly into the conical embossing thereby; serving not only to stretch the base covering 11 acros the fiat surface of the base 5 butralso to hold the edge of the cut-out portion of the base covering 11 from overlapping the flat surface engaging portion 14 ofthe non-slip member 9.

`The bolts 1 0 in theV embossings 6 and 7 are each equipped with a washer 18 and a nut 19 to keep them drawn up within the 4embossings 6 and 7. The bolt 10 in the embossing 8 is not equipped with a Washer and a nut but when the base 5 is attached to the main body portion 1 is held drawn up Within the conical embossing 8 by being screwed into a bracket not shown but located within the main body portion 1 ot the handset as aforesaid. To prevent the bolt 10 from dropping out of the embossing 8 when the base 5 is removed from the main body portion 1 a split ring 2O is sprung into a groove 21 shown in Fig. 7 in the shaft of the bolt 10.

lVhen the fiexible non-slip member 9 is drawn into an embossing as illustrated in Fig. f1 the ground-ofi' -bevel edge portion 14 is aligned with a fiat surface so that when a handset mounting equipped with the nonslip members is rested upon a flat surface, frictional contact will be made by the nonslip members 9 with the flat surface as the base covering 11 comes in contact with the flat surface.

In Fig. 6 the non-slip member 9 has been inverted as compared with Figs. 4L and 5 so that a sharp edge is presented by the non slip member 9 to a fiat surface. Under pressure of the weight of' the handset mounting this sharp edge portion of the non-slip member 9 will have a tendency to slightly spread and frictionally engage a fiat surface.

In the construction shown in Figs. 4 and 6 the non-slip member 9 is a flexible disc separable from the conical washer 17 and the bolt 10\and depending upon its being drawn into one of the conical embossings to give it effective shape. rIhe non-slip member 9 may, however, be molded onto a conical washer 17 as shown in Fig. 7. In this figure also the non-slip member 9 is rounded on the flat surface engaging portion andhas an abundance yof material at this point. With the weight of the handset mounting ,the rounded surface engaging portion of the non-slip member 9 would be spread out and flattened to make frictional contact with a flat surface upon which it was rested.

Telephone substation instruments may also be equipped with non-slip members as shown in Fig. 8 in which a non-slip member 9 or disc of non-slip materialis cemented or otherwise 1lgttached toa base covering 11 of a base mem- While in the drawing three non-slip members have been shown as attached to a base member 5 and only one of the bolt members 10 has been shown in Fig. 2 as a means for securing the base member 5 to the main body portion 1, it is considered within thisl invention to employ any number of nen-slip members and to secure the base member 5 to the main body portion 1 by any number of bolt members 10 or in any` other manner found desirable.

What is claimed is:

'1. In the base portion of a desk telephone 1,7se,oso

or the like, in combination a Hat surface for engaement with a-table, a fabric covering for t e fiat surface, and a plurality of nonslip members secured to the flat surface with their bearing surfaces substantially flush with the fabric covering'.

2. In the base portion of a desk telephone or the like, in combination a. fiat surface for engagenen't with a table, a fibrous protective covering secured to the flat surface, and a plurality of non-slip members secured to the fiat surface with their engaging surfaces substantially lflushl with the surface of the able ing protective covering.. v

3. In the base portion of a desk telephone or `the like, inv combination a fiat surface for engagement with a table, a fibrous covering for the at surface, a plurality of indentavor the like, in combination a flat surface for engagment with a tab1e,.a fibrous covern for t e flat surface a plurality of conicav embossin in the fiat surface and non-slip members --partally 4nelrawn .within thev embossings and having .surfaces for engagement with a table. l

- 6. In the base portion of a desk .telephone or the like,- in combination a fiat surface for engagement with a table, a rotective `covering` for'the fiat surface,`a urali of embossin within the flat sur ace an removv exible nonslip members taartially drawn within the. embomngs an fiat edge portions for engagement 'with-a table. 7. In the base portion of a desk telephone or the like, in combination a lfiat surface for` engagement with a table, a protective coverdentations inthe at surface and iexible non-sli members partially drawn within the in entations by screws and cu-shaed washers and having substantially ate ge portions for engagement with a table, sald screws and cup-sha ed washers bein countersunk below the at surface and t e table engang portions of the exible' non-slip mem rs.

In witness whereof,` I hereunto 'subscribe my name this 3rd day of November 1928.

' l JULIUsRENN.

a plurality of indenta having f or the fiat surface, a plurality of in- 

